Selecting the desired MOSFET fit for Buck-Boost for higher efficiency in power supply and battery charging section discussed in this app note from Alpha & Omega Semiconductors. Link here (PDF) The wide adoption of USB Type-C PD makes the notebook PC charger move to four MOSFET buck-boost charger topology to allow for wide range input […]
Tag Archives: Buck-boost converter
App note: Low cost 8W off-line LED driver using RT8487
App note from Richtek on their RT8487 compact buck-boost LED driver. Link here RT8487 is a boundary mode constant current controller with internal high side driver, which can be used in buck and buck-boost configuration, to provide a constant output current to the (LED) load. It contains special circuitry for achieving high power factor and […]
App note: Power IC solutions for IoT / Portable / Wearable / Battery-Powered applications
A tidy and organized power solution list from Richtek. Link here (PDF)
App note: Buck-boost converter
Here is an article from Texas Instruments featured on EETimes describing how to design a buck-boost converter. These converters are used when the input voltage can be both above and below the output voltage. One example are 3.3V systems powered by lithium-ion batteries which swing from ~3V to ~4V. This design is in effect a […]